[obsoquasi]

I own, a lot of F/2.8 glas and love it. But for concerts, dance performances and other occasions where flash is inappropriate, I couldn't do it without my trusty 50mm f/1.4. Although at 1.4 it's very soft, It enables me to get blurless shots in very low light without noise (ISO at 800). It's a pitty that canon (and nikon) don't have other affordable f/1.4 primes. Is the 1/2 stop worth the extra money? Absolutely! What about the 1.2? Well, one of the beauties of the f/1.4 is the the fact that it's still a very compact lens and therefor a light-weight too. Not only is the 1.2 much much more expensive, it's also a lot heavier and not something you pack into your bag anyway, because it takes hardly up any space.